<?xml version="1.0" encoding="ISO-8859-1" ?>
<%@page import="java.security.Principal"%>
<%@page import="com.google.appengine.api.users.UserService"%>
<%@page import="com.google.appengine.api.users.UserServiceFactory"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Insert title here</title>
</head>
<body>
<% 
UserService userService = UserServiceFactory.getUserService();

String thisURL = request.getRequestURI();

response.setContentType("text/html");
userService.getCurrentUser().getUserId();
if (request.getUserPrincipal() != null) {
%>
<p>Hello <%=request.getUserPrincipal().getName()%>!  You can <a href="<%=userService.createLogoutURL(thisURL) %>" >sign out</a>.</p>
<%
} else {
%>
<p>Please <a href="<%=userService.createLoginURL(thisURL) %>">sign in</a>.</p>
<%
}
%>
</body>
</html>